Religious law in the context of "Karaite Jews"

Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior, with its precise definition a matter of longstanding debate. It has been variously described as a science and as the art of justice. State-enforced laws can be made by a legislature, resulting in statutes; by the executive through decrees and regulations; or by judges' decisions, which form precedent in common law jurisdictions. An autocrat may exercise those functions within their realm. The creation of laws themselves may be influenced by a constitution, written or tacit, and the rights encoded therein. The law shapes politics, economics, history and society in various ways and also serves as a mediator of relations between people.

Legal systems vary between jurisdictions, with their differences analysed in comparative law. In civil law jurisdictions, a legislature or other central body codifies and consolidates the law. In common law systems, judges may make binding case law through precedent, although on occasion this may be overturned by a higher court or the legislature. Religious law is in use in some religious communities and states, and has historically influenced secular law.

Religious texts, including scripture, are texts which various religions consider to be of central importance to their religious tradition. They often feature a compilation or discussion of beliefs, ritual practices, moral commandments and laws, ethical conduct, spiritual aspirations, and admonitions for fostering a religious community.

Within each religion, these texts are revered as authoritative sources of guidance, wisdom, and divine revelation. They are often regarded as sacred or holy, representing the core teachings and principles that their followers strive to uphold.

Sharia (/ʃəˈriːə/; Arabic: شَرِيعَة, romanized: sharīʿah, lit. 'path [to water]', IPA: [ʃaˈriːʕa]), also transliterated as Sharī'ah, Shari'a, or Shariah, is a body of religious law that form the Islamic tradition based on scriptures of Islam, particularly the Qur'an and hadith. In Islamic terminology sharīʿah refers to immutable, intangible divine law, in contrast to fiqh (Islamic jurisprudence), which refers to its interpretations by Islamic scholars. Sharia, or fiqh as traditionally known, has always been used alongside customary law from the very beginning in Islamic history; it has been elaborated and developed over the centuries by legal opinions issued by qualified jurists – reflecting the tendencies of different schools – and integrated with various economic, penal and administrative laws issued by Muslim rulers; and implemented for centuries by judges in the courts until recent times, when secularism was widely adopted in Islamic societies.

Traditional theory of Islamic jurisprudence recognizes four sources for al-sharia: the Qur'an, sunnah (or authentic ahadith), ijma (lit. consensus) (may be understood as ijma al-ummah (Arabic: إجماع الأمة) – a whole Islamic community consensus, or ijma al-aimmah (Arabic: إجماع الائـمـة) – a consensus by religious authorities), and analogical reasoning. It distinguishes two principal branches of law, rituals (Ibadah) and social dealings (Muamalat); subsections family law, relationships (commercial, political / administrative) and criminal law, in a wide range of topics assigning actions – capable of settling into different categories according to different understandings – to categories (ahkam) mainly as: mandatory, recommended, neutral, abhorred, and prohibited. Beyond legal norms, Sharia also enters many areas that are considered private practises today, such as belief, worshipping, ethics, clothing and lifestyle, and gives to those in command duties to intervene and regulate them.

Halakha (/hɑːˈlɔːxə/ hah-LAW-khə; Hebrew: הֲלָכָה, romanized: hălāḵā, Sephardic: [halaˈχa]), is the collective body of Jewish religious laws that are derived from the Written and Oral Torah. Halakha is based on biblical commandments (mitzvot), subsequent Talmudic and rabbinic laws, and the customs and traditions which were compiled in the many books such as the Shulchan Aruch or Mishneh Torah. Halakha is often translated as "Jewish law", although a more literal translation might be "the way to go" or "the way of walking". The word is derived from the root ה–ל–כ, which refers to concepts related to "to go", "to walk". Halakha not only guides religious practices and beliefs; it also guides numerous aspects of day-to-day life.

Historically, widespread observance of the laws of the Torah is first in evidence beginning in the second century BCE, and some say that the first evidence was even earlier. In the Jewish diaspora, halakha served many Jewish communities as an enforceable avenue of law — both civil and religious, since no differentiation of them exists in classical Judaism. Since the Jewish Enlightenment (Haskalah) and Jewish emancipation, some have come to view the halakha as less binding in day-to-day life, because it relies on rabbinic interpretation, as opposed to the authoritative, canonical text which is recorded in the Hebrew Bible. Under contemporary Israeli law, certain areas of Israeli family and personal status law are, for Jews, under the authority of the rabbinic courts, so they are treated according to halakha. Some minor differences in halakha are found among Ashkenazi Jews, Mizrahi Jews, Sephardi Jews, Yemenite, Ethiopian and other Jewish communities which historically lived in isolation.

Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of heresy.

Heresy in Judaism, Christianity, and Islam has at times been met with censure ranging from excommunication to the death penalty.